static error_t parse_opt(int key, char* arg, struct argp_state* state) {
Args& a = *((Args*)state->input);
switch (key) {
case 'g':
a.generator = getMGTypeFromName(arg);
if (a.generator == MazeGenerator::Type::UNKNOWN) {
argp_error(state, "unknown generator -- '%s'", arg);
}
break;
case 'c':
a.renderer = ConsoleMazeRenderer::RenderType::COLOR;
break;
case 'n':
a.renderer = ConsoleMazeRenderer::RenderType::NO_COLOR;
break;
case ARGP_KEY_ARG:
handleArg(state, arg, a);
break;
case ARGP_KEY_END:
if (!a.valid()) argp_error(state, "too few arguments");
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
CrustaApp::
CrustaApp(int& argc, char**& argv, char**& appDefaults) :
Vrui::Application(argc, argv, appDefaults),
dataDialog(NULL),
paletteEditor(new PaletteEditor), layerSettings(paletteEditor)
{
crusta = new Crusta(argv[0]);
paletteEditor->getColorMapEditor()->getColorMapChangedCallbacks().add(this, &CrustaApp::changeColorMapCallback);
paletteEditor->getRangeEditor()->getRangeChangedCallbacks().add(this, &CrustaApp::changeColorMapRangeCallback);
for (int i=1; i<argc; ++i) handleArg(argv[i]);
crusta->start();
produceMainMenu();
/* Set the navigational coordinate system unit: */
Vrui::getCoordinateManager()->setUnit(
Geometry::LinearUnit(Geometry::LinearUnit::METER, 1));
/* Register a geodetic coordinate transformer with Vrui's coordinate manager: */
VruiCoordinateTransform* userTransform;
userTransform=new VruiCoordinateTransform;
userTransform->setupComponent(crusta);
Vrui::getCoordinateManager()->setCoordinateTransform(userTransform); // coordinate manager owns userTransform
resetNavigationCallback(NULL);
#if CRUSTA_ENABLE_DEBUG
DebugTool::init();
#endif //CRUSTA_ENABLE_DEBUG
}
void CrustaApp::handleArg(const std::string& arg)
{
int file = open(arg.c_str(), O_RDONLY | O_NONBLOCK);
if (file == -1) {
std::cerr << "Warning: skipping unreadable file " << arg << std::endl;
return;
}
struct stat stat_buf;
int stat_status = fstat(file, &stat_buf);
if (stat_status == -1) {
std::cerr << "Warning: skipping unstatable file " << arg << std::endl;
}
std::string ext = get_extension(arg);
if (ext == "cfg") {
std::cerr << "Config: " << arg << std::endl;
SETTINGS->mergeFromCfgFile(arg);
} else if (ext == "wrl") {
std::cerr << "VRML: " << arg << std::endl;
crusta->loadSceneGraph(arg);
} else if (ext == "pal") {
std::cerr << "Palette: " << arg << std::endl;
crusta->setPalette(arg);
} else if (S_ISDIR(stat_buf.st_mode)) {
std::cerr << "Globe: " << arg << std::endl;
crusta->loadGlobe(arg);
} else {
std::cerr << "Project: " << arg << std::endl;
std::string basedir = "./";
size_t pos = arg.find_last_of("/");
if (pos != string::npos) basedir = arg.substr(0, pos+1);
std::string line;
fcntl(file, F_SETFL, 0); // clear O_NONBLOCK
while (true) {
char buf;
ssize_t s = read(file, &buf, 1);
if (s <= 0 || buf == '\n' || buf == '\r') {
if (!line.empty() && line[0] != '#') {
if (line[0] != '/') line = basedir + line;
handleArg(line);
}
if (s > 0) line.clear(); else break;
} else {
line += buf;
}
}
}
close(file);
}